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by throwaway_kufu 2168 days ago
> Source?

More interesting, however, is the fact that ketones can provide as much as 70% of the brain's energy needs, more efficiently than glucose. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3219306/

You are ignoring the most important part, humans don’t need outside sources of carbs/sugar (glucose) to power the brain, the body will produce the required glucose internally. So humans can live without carbs/sugar but the same can’t be said without fats.

And no ketosis is not a state of starvation, it’s not clear why you keep saying that, it’s a metabolic state that the body only gets thrown out of when insulin is spiked.

Again it is the default the body only gets knocked out of when introduced to certain foods in certain quantities, which would not have been available pre-ag.